Transom-lifter.



H. OSBORNE.

TRANSOM LIFTER.

APPLICATION FILED MAY 24, 1911.

1,040,570. Patented 00t.8,1912.

2 SHEETS-SHEET l.

WITNESSES: INVENTOR,

WW I 13 7am; 08507726,

ATTORNEY.

COLUMBIA I'LANOORAPN cm, WAS c.

H. OSBORNE.

TRANSOM LIFTER.

APPLIOATION FILED MAY 24, 1911.

1,040,570. Patented 0ct.8,1912.

2 SHEETS-BHBET 2.

INVENTOR, fi eman 0.5507726,

' A TTORNEY.

HEMAN OSBORNE, OF SPRINGFIELD, MASSACHUSETTS.

TRANSOM-LIFTER.

i ,oaomo.

Specification of Letters Patent.

Application filed. May 24, 1911.

Patented Oct; 8, 1912.

Serial No. 629,106.

To (all whom it may concern:

Be it known that I, I'IEMAN OSBORNE, a citizen of the United States ofAmerica, and resident of Springfield, in the county of Hampden and Stateof Massachusetts, have invented certain new and useful Improve ments inlransom-Lifters, of which the fol lowing is a full, clear, and exactdescription.

This invention relates to improvements in transon'i operating devices ofa type such as is exemplified in Letters Patent of the United. Statesgranted to me June 11, 1901, No. 856,288, and one having the respectivefunctions of such a device. But the present invention is for the purposeof providing a transom operating mechanism which, due to the improvedorganization thereof is capable of the fulfilment of its functions moreefliciently and satisfactorily, and which by reason of its simplifiedcharacter is less costly of manufacture and assemblage, and is-lessliable of derangement after protracted use and is generally of greateracceptability in the trade.

The principal features of improvement and advantage in the presentdevice are found in the means whereby the wormwheel carrying shaft,having the transom operating lever like member permanently fixedthereon, and radially extended therefrom, may be revolubly adjustedrelatively to the worm mechanism so that the transom operating membermay have all required capability for positioning 01' adjustment toaccord with transoms which may be more or less deeply set in thecasings, and all as hereinafter fully explained; in the arrangement ofthe springs operatively employed for counterbalancing the weight of theopening transom, and the means for varying the tension or reaction ofthe springs to insure proper counterbalancing action with respect totransoms of different sizes and weights; and in the new arrangement orcombination of the parts for the requirement of extreme simplicitycheapness and operative efficiency of the device.

The invention is described in conjunction with the accompanying drawingsand is set forth in the claims.

In the drawings: Figure 1. is a front elevation of the transom operatingdevice with the cover portion of the casing removed. Fig. 2 is avertical sectional view through the same on the line 2-2, Fig. 1. Fig. 3is a horizontal cross section on line 3-3, Fig. 1. Fig. t is aperspective view showing the operating device as applied in itsoperative relation to an under pivoted or hinged transom. Fig. 5 is aperspective view of the rear portion of the casing as seen from therear. Fig. 0 is a perspective view of certain of the principal parts ofthe novel device in separated relations. Figs. 7 and 8 respectively aresectional and face views indicat ing the manner of the permanentconnection of the transom operating member with the rotativc carryingshaft thereof. Fig. 5) is a view of one of the counterbalancing springsemployed in the device. A

Similar clmracters of reference indicate corresponding parts in all ofthe views.

In the drawings, A represents the supporting frame of design anddimension having fitness to its purpose, and B reprcscl'lts a shaftrotatively ll'lOlllllOCl in the frame and carrying at its one end whichextends outwardly beyond the frame and its inclosing casing C, thelever-like member D which is operatively connected with a slottedbracket E affixed on the transom in a manner common in devices of thiskind.

The end portion of the shaft is made with a flange-like enlargement awhich includes a squared portion b and a shoulder If fitted to which isthe butt end of the transom operating member D which is permanently heldin place by the screw 0 and retaining washer 0 The middle portion of theshaft B has the screw threads (I thereon and other portions of the shafttoward the opposite ends thereof are made with the right and left screwthreads f, f, as shown in Figs. 3 and 6. The worm-wheel F is screwengaged on the threaded portion (Z, at the middle of the shaft, wherebythe shaft is rotatively adjustable within, and relatively to, theworm-wheel for revolubly adjusting the transom operating member B sothat such member may reach its engagement with the fixture E of thetransom irrespective of whether the latter is much or little insetwithin the casing.

Tt will be here explained that in the employment of the device theframe, which is inclosed by the casing C and which supports themechanism, is generally secured on the face of the door casing about asrepresented in Fig. 4-,--the lever-like arm D extending upwardly toproximity with the transom which it, such arm, engages through themedium of the slotted bracket or transom fixture E. Inasmuch as indifferent sltuations the reveal varies, that is in some forwardrelatively to the face of the casing, it is necessary to make provisionwhereby the lever-like transom-operating arm may be revolubly adjustableabout the axis of the shaft B so that it will have its range of movementfor forcing the transom open or closed within whatever space mayberequisite according to the conditions under which the transom and thecasing are set.

G G represent a pair of arms having apertured shanks which embrace theshaft B at opposite sides of, and closely alongside the worm-wheel F,the same bein engaged with the worm wheel so as to have revolublemovements in unison therewith by the engagement in the sockets g in thearms of the studs 9 which extend from opposite sides of the worm-wheel.

J J represent a pair of ring-nuts screw engaged on the right and leftthreaded portions f f of the shaft and servln both to confine the shanksof the arms G 6} against the opposite faces of the worm-wheel and tolock the worm-wheel and shaft in their revolubly adjusted relations.

gagement of a spanner-wrench' The wormwheel meshes with the worm Kmounted 1n suitable journals in the frame and having,

as a fixed part thereof, a sprocket wheel L around which runs theintermediate part of the sprocket chain M, through means of which thedevice is manually operated to the coils thereof loosely encircling saidbar and having their extremities 10 and 12 extending angularly from thebar and in angular relations to each other as best shown in Fig. 2.

Duplicated links 1% m connect the extremities 1O 10 of the springs y'with the hookshaped ends of the arms G; and the screwplugs 0 0 engagedthrough an upper front portion of the frame have tension varyingengagements with the adjacent extremities 12 12 of the springs so thatby turning the screw-plugs inwardly the reaction of the springs isincreased to accord with large or heavy transoms while the forwardturning of the screw-plugs decreases the spring reaction.

coiled around the bar 2' and have their forward extremities engaged withthe llnks G, wlll become more wound up and the re- These ringnuts haveholes therein to receive the en- In this connection it is to beperceived that the springs j j-whieh are loosely action or tensionthereof increased when their upper tangential extremities 12 are'rearwardly forced by the threading inwardly of the screw plugs 0.0,-the reversal of such conditions following a forward adjustment of thescrew plugs.

Vhen it is desired to vary the normal direction of the extension of theradial leverlike transom operating member D relatively to the axis ofthe shaft B it is only necessary on the removal of the front section ofthe cover or casing to loosen one or the other of the nuts J and swingthe member 1) which is screw engaged with and permanently connected to,the shaft, so that the shaft may be rotated, as much as desired, itbeing understood that the threaded part (Z at the middle of the shaftwhen both of the nuts are not set up against the opposite faces of theworm wheels, is free to have a rotative movement relatively to the wormwheel, which will remain stationary by the inworm K.

Almost the entire mechanism of the transom operating device, includingthe means for the adjustment of the shaft, is inclosed, concealed andsafeguarded within the casing; and as none of the parts of the operativemechanism especially including those for effecting adjustments arevisible or acing' the parts thereof properly positioned indefinitelycontinued and eflicient service without liability of derangement. bealso stated that the operating chain the middle of which has asupporting engagement around the sprocket wheel, and the dependingportions of which terminate at about the same distance below the casing,under the capabilities hereinabove described for the adjustment of theshaft, undergoes no change relatively to the sprocket wheel when'the armcarryin shaft may be adjusted. preparatory to setting up the device andafter the chain has been assembled in relation to the sprocket wheel.

I claim bination with a supporting frame, and a shaft, rotativelymounted therein, having a portion thereof screw threaded, and having atransom operating arm affixed on the end thereof, of a worm-wheel havinga central screw threaded opening, and screw engaged on the threadedportion of the shaft, whereby the shaft is rotatively adjustable withinthe worm-wheel for varying the direction of the extension of the arm,means for confining the screw engaged worm-wheel and shaft in theiradjustments, a worm mounted in the frame and in engagement wit-h theworm-wheel, and means for rotating the worm.

terlockingengagement therewith of the" and mounted in use may be reliedupon for- 1. In a transom operating device, the comcessible, the transomoperating device hav- It may 7 2. In a transom operating device, thecombination with a supporting frame, and a shaft, rotatively mounted.therein, having the middle portion thereof screw threaded, havingopposite end portions thereof provided with right and left screwthreads, and having a transom operating arm atlixed on the end thereof,of a worm-wheel having a central screw threaded opening, and screwengaged on the threaded middle portion of the shaft whereby the shaft isrot-at-ively adjnstable within the worm-wheel, nuts screw engaging onthe right and left threaded portions of the shaft and operative to lockthe screw engaged worm-wl'ieel and shaft in their adjustments, a wormmounted in the frame, and in mesh with the worm-wheel, and means forrotating the worm.

3. In a transom operating device, in combination, a supporting frame,and a shaft rotatably mounted therein, having a transom operatingelement aflixed on the end thereof, carrying a radial arm at a portionthereof in the frame, and having a wormwheel thereon, a worm in meshwith the worm-wheel, and a means for rotating it, a spring supported inthe frame, and a link connecting said spring and said arm.

i. In a transom operating device, the combination with a supportingframe, and a shaft rotatably mounted therein, having a transom operatingelement affixed on the end thereof, carrying a radial arm at a portionthereof within the frame, and having a worm-wheel thereon, of a worm inmesh with the worm-wheel, and a means for rotating it, a springsupported in the frame, a link connecting said spring with said arm, andmeans for varying the tension of the spring.

In a transom operating device, in combination, a supporting frame, and ashaft, rotatably mounted therein, having opposite end portions thereofprovided with right and left screw threads, and having a transomoperating member affixed on the end thereof, a worm-wheel engaged on themid dle portion of the shaft, a pair of arms hav ing apertured shanks,embracing the shaftat opposite sides of the worm-wheel, nuts screwengaged on the right and left threaded portions of the shaft and bindingthe shanks of said arms facewise against the wormwheel, a pair ofsprings supported in the fame, links connecting the springs with saidarms, a worm mounted in the frame in mesh with the worm-wheel, and meansfor turning it.

6. In a transom operating device, in combination, a supporting frame,and a shaft, rotatably mounted therein, having the middle portionthereof screw threaded, having opposite end portions thereof providedwith right and left screw threads, and having a transom operating memberaffixed on the end thereof, a worm-wheel screw engaged on the threadedmiddle portion of the shaft, a pair of arms having apertured shanks,einbracing the shaft at opposite sides of the worm-wheel, nuts screwengaging on the right and left threaded portions of the shaft andbinding the shanks of said arms against the sides of the wimn-wheel, apair of springs supported in the frame, links connecting the springswith said arms, and screws engaged through the frame and engaged with,and for varying the tension of, said springs, and worm mounted in theframe and meshing into the worm-wheel and means for turning it.

T. in a transom imerating device, in combination, a supporting frame, ashaft, rota lively mounted therein, having opposite end portions thereofmade with right and left screw threads, and having a transom operatingnieinber allixed on the end thereof, a worm-wheel engaged on the middleportion of the shaft, and provided with studs projecting from oppositesides thereof, a pair of arms having apcrtured shanks embracing theshaft at opposite sides of the wormwheel, and having sockets in whichsaid studs are engaged, nuts screw engaged on the right and leftthreaded portions of the shaft and confining the shanks of said armsagainst the sides of the worm-wheel, a pair of springs supported in theframe, links connecting the springs with said arms, and a worm, mountedin the frame, and meshing with the worm-wheel, and means for turning it.

S. In a transom operating device, in combination, a supporting frame, ashaft, rotatively mounted therein, having a transom operating memberallixed on the end thereof, and carrying a radially extending arm, meansfor in'iparting rota tive movements to said shaft, a spring mounted inthe frame, and a link connecting said arm with said spring.

9. In a transom operating device, in combination, a SllpPUlt'iIlg frame.a shaft rotativcly mounted therein, having a transom operating memberallixed thereon, and carrying a radially extending arm, means forimparting rotativc movements to said shaft, a spring mounted in theframe, a link connecting said arm with said spring, and means forvarying the tension of the spring.

10. In a transom operating device, in combination, a supporting frame, ashaft rotatively mounted therein, provided with a transom operatingmember, and carrying a radially extending arm, means for rotating saidshaft, :1 bar mounted in the frame, a spiral spring having the coilsthereof e11- cireling said bar, and having the extremities thereofextended angularly from said bar, a link connecting one extremity of thespring with said arm, and a screw engaged through the frame, and havinga tension-varying engagement with the other extremity of said sprin 11.In a transomoperatingdevice, in com bination, a supporting frame, ashaft rotatively mounted therein, having its middle portion screwthreaded, having opposite end Vportions thereof made with right and leftscrew threads, and having a transom operating member affixed on the endthereof, a worm-wheel screw engaged on the middle portion of the shaft,a pair of arms having apertured shanks embracing the shaft at oppositesides of the wormwheel, nuts screw engaged on the right and leftthreaded portions of the shaft, and serving both to confine the shanksof said arms against the op posite faces of the worm-wheel, and todetachably lock the worm-wheel and shaft in their rotational adjustablerelations, a bar mounted in the frame parallel with the shaft, spiralsprings having the coils thereof encircling said bar, and having theirextremities extending angularly from the bar, links connecting anextremity of each spring with each arm, screws engaged through the frameand having tension-varying engagements with the other extremities ofsaid springs, a worm rotatively mounted in the frame, and

Copies of this patent may be obtained for five cents in mesh with saidw0rmwheel, and means for turning said worm.

12. In a transom operating device, the combination with a supportingframe, and a shaft, rotatively mounted therein, having portions ateither side of its intermediate portion provided with right and leftscrew threads, and having a transom operating arm affixed on the endthereof and extended radially therefrom, of a worm-wheel having acentral opening, and engaged about the intermediate portion of the shaftwhereby the shaft is rotatively adjustable within and relatively to theworm-wheel, for varying the direction of the extension of the radial armrelatively to the axis of the shaft, nuts screw engaging on the rightand left threaded port-ions of the shaft and operative to lock the screwengaged worm wheel and shaft in their adjustments, a worm mounted in theframe, and in mesh with the worm-wheel,

and means for rotating the worm.

Signed by me at Springfield, Mass, in presence of two subscribingwitnesses.

HEMAN OSBORNE.

/Vitnesses:

WM. S. BELLows, G. R. DRISCOLL.

each, by addressing the Commissioner of Patents.

Washington, D. C.

